AdamWathan\Form\Elements\DateTimeLocal::value PHP Method

    public function value($value)
    {
        if ($value instanceof \DateTime) {
            $value = $value->format('Y-m-d\\TH:i');
        }
        return parent::value($value);
    }

 public function testDateTimeValuesAreBoundAsFormattedStrings()
 {
     $dateTimeLocal = new DateTimeLocal('dob');
     $dateTimeLocal->value(new DateTime('12-04-1988 10:33'));
     $expected = '<input type="datetime-local" name="dob" value="1988-04-12T10:33">';
     $this->assertSame($expected, $dateTimeLocal->render());
 }